# \#Splines

**URL:** https://discussions.unity.com/tag/splines/159504.md

[Latest](https://discussions.unity.com/latest.md) · [Categories](https://discussions.unity.com/categories.md) · [Tags](https://discussions.unity.com/tags.md)

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## [Unity splines package causes strange visual glitches](https://discussions.unity.com/t/unity-splines-package-causes-strange-visual-glitches/1735616)

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**Author:** [@vitrualacc](https://discussions.unity.com/u/vitrualacc)\
**Replies:** 1\
**Last updated:** [September 4, 2026, 12:18am UTC](https://discussions.unity.com/t/unity-splines-package-causes-strange-visual-glitches/1735616 "2026-09-04T00:18:56Z")

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I’m on Unity 2022.3.62f3 and I’m using the latest version of the spline package (older version have this same issue) ive encountered this strange bug (that makes its incredibility difficult to accurately place down sp…

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## [Calling Randomize() causes Spline Instantiate instances to disappear in build](https://discussions.unity.com/t/calling-randomize-causes-spline-instantiate-instances-to-disappear-in-build/1663844)

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**Author:** [@hntb\_adam](https://discussions.unity.com/u/hntb_adam)\
**Replies:** 5\
**Last updated:** [September 3, 2026, 1:54pm UTC](https://discussions.unity.com/t/calling-randomize-causes-spline-instantiate-instances-to-disappear-in-build/1663844 "2026-09-03T13:54:07Z")

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Hey not sure if this is a bug or something I’m doing wrong, but I’ve been using SplineInstantiate a lot and this is the first time I’m seeing it. Basically, I programmatically set up splines in Start() that are referenc…

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## [Unity Splines (896343)](https://discussions.unity.com/t/unity-splines-896343/896343)

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**Author:** [@gabrielw\_unity](https://discussions.unity.com/u/gabrielw_unity)\
**Replies:** 657\
**Last updated:** [August 26, 2026, 1:53am UTC](https://discussions.unity.com/t/unity-splines-896343/896343 "2026-08-26T01:53:41Z")

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Welcome to the Splines discussion thread. You can use this thread to ask for help, share feedback, and have discussions about the Splines package. Introduction Splines provides a shared solution for path-based tooli…

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## [World Building Public Roadmap and Feature Requests](https://discussions.unity.com/t/world-building-public-roadmap-and-feature-requests/917969)

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**Author:** [@EricDziurzynski](https://discussions.unity.com/u/EricDziurzynski)\
**Replies:** 103\
**Last updated:** [August 4, 2026, 2:15pm UTC](https://discussions.unity.com/t/world-building-public-roadmap-and-feature-requests/917969 "2026-08-04T14:15:13Z")

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We want to hear from you about what you need from Unity most to succeed when building large, open world experiences in Unity! We do our best to manage the public world building roadmap in terms of publicly showcasing wh…

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## ["World animation alignment mode is not supported!" in Unity Splines](https://discussions.unity.com/t/world-animation-alignment-mode-is-not-supported-in-unity-splines/1699637)

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**Author:** [@kturkay](https://discussions.unity.com/u/kturkay)\
**Replies:** 3\
**Last updated:** [July 5, 2026, 10:01pm UTC](https://discussions.unity.com/t/world-animation-alignment-mode-is-not-supported-in-unity-splines/1699637 "2026-07-05T22:01:53Z")

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hi brothers and sisters, I think after updating to Unity 6.3 LTS getting this message repeatedly in console. “World animation alignment mode is not supported!” (897 times and counting…) how can I eliminate this ? Sp…

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## [NativeSpline and Burst](https://discussions.unity.com/t/nativespline-and-burst/1515305)

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**Author:** [@Incol3](https://discussions.unity.com/u/Incol3)\
**Replies:** 1\
**Last updated:** [June 14, 2026, 12:03pm UTC](https://discussions.unity.com/t/nativespline-and-burst/1515305 "2026-06-14T12:03:28Z")

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At this point all NativeSpline constructors requires IReadOnlyList knots which currently leads to boxing and as a result burst compile error. Is there any plans for Burst support? I would also apriciate full ECS workflo…

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## [Spline Mesher \[Standard/Pro\] - Advanced spline meshes](https://discussions.unity.com/t/spline-mesher-standard-pro-advanced-spline-meshes/942952)

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**Author:** [@StaggartCreations](https://discussions.unity.com/u/StaggartCreations)\
**Replies:** 84\
**Last updated:** [May 29, 2026, 9:00am UTC](https://discussions.unity.com/t/spline-mesher-standard-pro-advanced-spline-meshes/942952 "2026-05-29T09:00:11Z")

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Standard Edition: Asset Store | Documentation Pro Edition: Asset Store | Documentation What’s different?

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## [Splines Feedback](https://discussions.unity.com/t/splines-feedback/860384)

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**Author:** [@Rowlan](https://discussions.unity.com/u/Rowlan)\
**Replies:** 152\
**Last updated:** [May 21, 2026, 1:24am UTC](https://discussions.unity.com/t/splines-feedback/860384 "2026-05-21T01:24:43Z")

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This a thread about the experimental package of the Splines, ie an older version. A much better newer preview version will be released soon. First time user and early feedback is important, so I thought I’d share my ex…

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## [Can I click to add a knot to a spline segment?](https://discussions.unity.com/t/can-i-click-to-add-a-knot-to-a-spline-segment/1550237)

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**Author:** [@adamgryu](https://discussions.unity.com/u/adamgryu)\
**Replies:** 5\
**Last updated:** [May 19, 2026, 8:29pm UTC](https://discussions.unity.com/t/can-i-click-to-add-a-knot-to-a-spline-segment/1550237 "2026-05-19T20:29:44Z")

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I’m using the new Unity splines tool. I could have sworn there was an easy way to shift-click / control-click on a spline to add a new knot directly to a segment. I can’t figure out how to do this, do I really have to go…

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## [Splines package's events should be instance fields instead of static fields](https://discussions.unity.com/t/splines-packages-events-should-be-instance-fields-instead-of-static-fields/1717326)

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**Author:** [@IXKiiroiSenkoXI](https://discussions.unity.com/u/IXKiiroiSenkoXI)\
**Replies:** 0\
**Last updated:** [April 21, 2026, 5:37am UTC](https://discussions.unity.com/t/splines-packages-events-should-be-instance-fields-instead-of-static-fields/1717326 "2026-04-21T05:37:27Z")

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Splines packages has some events (delegates) for spline container and spline changes (e.g. Spline.Changed, SplineContainer.SplineAdded, etc.) but these event are all static (apparently for editor tooling?). This results…

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## [Rotation Weirdness Using Spline Animate in a 2D Setting](https://discussions.unity.com/t/rotation-weirdness-using-spline-animate-in-a-2d-setting/1714341)

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**Author:** [@adscomics](https://discussions.unity.com/u/adscomics)\
**Replies:** 0\
**Last updated:** [March 26, 2026, 11:04pm UTC](https://discussions.unity.com/t/rotation-weirdness-using-spline-animate-in-a-2d-setting/1714341 "2026-03-26T23:04:56Z")

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I’m currently building a 2D shoot’em up and have been exploring some ways of handling path movement. Due to circumstances somewhat unique to my game, using the popular Simple Waypoint System is not super viable for me. I…

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## [Spline Animate Ease Out-In missing](https://discussions.unity.com/t/spline-animate-ease-out-in-missing/1713648)

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**Author:** [@pverflow](https://discussions.unity.com/u/pverflow)\
**Replies:** 4\
**Last updated:** [March 20, 2026, 8:07pm UTC](https://discussions.unity.com/t/spline-animate-ease-out-in-missing/1713648 "2026-03-20T20:07:06Z")

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Hi, İ want to animate a rock thrown along a spline. And i think the ease option could use some more variation. there is only Ease Out Ease In Ease In-Out but no Ease Out-In (fast,slow,fast) for example. Or bette…

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## [How to change the path](https://discussions.unity.com/t/how-to-change-the-path/1712649)

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**Author:** [@Carwashh](https://discussions.unity.com/u/Carwashh)\
**Replies:** 0\
**Last updated:** [March 12, 2026, 3:09pm UTC](https://discussions.unity.com/t/how-to-change-the-path/1712649 "2026-03-12T15:09:51Z")

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I’m using the Splines package to create train tracks, and I want to be able to have switches - where the track can change the path the train is taking. From the image, the red line is Spline\[0\] and blue is Spline\[1\] …

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## [How to turn off Spline Container gizmos in Scene?](https://discussions.unity.com/t/how-to-turn-off-spline-container-gizmos-in-scene/1711434)

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**Author:** [@Lo-renzo](https://discussions.unity.com/u/Lo-renzo)\
**Replies:** 0\
**Last updated:** [March 4, 2026, 3:38pm UTC](https://discussions.unity.com/t/how-to-turn-off-spline-container-gizmos-in-scene/1711434 "2026-03-04T15:38:32Z")

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6.3.4 Not seeing it in Gizmos dropdown. Also not seeing it on the component. Disabling the component also doesn’t work. Deactivating the gameobject works. The best I’ve found is the “eye” gizmo, to the left on the g…

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## [Hotkey to enter spline edit mode?](https://discussions.unity.com/t/hotkey-to-enter-spline-edit-mode/1694447)

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**Author:** [@habahut](https://discussions.unity.com/u/habahut)\
**Replies:** 1\
**Last updated:** [March 3, 2026, 9:12am UTC](https://discussions.unity.com/t/hotkey-to-enter-spline-edit-mode/1694447 "2026-03-03T09:12:54Z")

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Hello, is there a hot key to enter spline edit mode when selecting an object with a spline container? I searched the web and I didn’t find anything

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## [Memory Leak Involving Spline Animate?](https://discussions.unity.com/t/memory-leak-involving-spline-animate/1709280)

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**Author:** [@CookieInfernos](https://discussions.unity.com/u/CookieInfernos)\
**Replies:** 1\
**Last updated:** [February 18, 2026, 12:55pm UTC](https://discussions.unity.com/t/memory-leak-involving-spline-animate/1709280 "2026-02-18T12:55:51Z")

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Hi there, I am using the Splines package for the first time and just recently encountered this strange memory leak. I thought it was from my code, but upon looking into the callstack it appears to be stemming from memory…

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## [SplineInstantiate generated GameObject names feel placeholder-like](https://discussions.unity.com/t/splineinstantiate-generated-gameobject-names-feel-placeholder-like/1709199)

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**Author:** [@emptybraces](https://discussions.unity.com/u/emptybraces)\
**Replies:** 0\
**Last updated:** [February 17, 2026, 8:38am UTC](https://discussions.unity.com/t/splineinstantiate-generated-gameobject-names-feel-placeholder-like/1709199 "2026-02-17T08:38:04Z")

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I think it would be better to base them on the specified instance’s name instead of “Instance-N,” or at least provide an option to do so.

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## [Splines, large dataset of knots runs way too slow.](https://discussions.unity.com/t/splines-large-dataset-of-knots-runs-way-too-slow/931974)

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**Author:** [@bdharmon](https://discussions.unity.com/u/bdharmon)\
**Replies:** 8\
**Last updated:** [February 15, 2026, 12:40am UTC](https://discussions.unity.com/t/splines-large-dataset-of-knots-runs-way-too-slow/931974 "2026-02-15T00:40:09Z")

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I am trying to draw a road using Unity Splines (v2.4.0). However, I am using a real life dataset and assigning the coordinates of each element to a new knot and adding that newly created knot to the spline container. The…

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## [SplineInstantiate’s BakeInstances action removes the component](https://discussions.unity.com/t/splineinstantiate-s-bakeinstances-action-removes-the-component/1707498)

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**Author:** [@emptybraces](https://discussions.unity.com/u/emptybraces)\
**Replies:** 0\
**Last updated:** [February 5, 2026, 5:24am UTC](https://discussions.unity.com/t/splineinstantiate-s-bakeinstances-action-removes-the-component/1707498 "2026-02-05T05:24:44Z")

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Once the component is removed, all its settings are lost. If you want to make tweaks based on the previous bake settings, you have no choice but to keep a backup gameobject. It would be better to disable the component i…

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## [How to use SplineAnimate on a specific spline in a Spline Container?](https://discussions.unity.com/t/how-to-use-splineanimate-on-a-specific-spline-in-a-spline-container/1706774)

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**Author:** [@nickbarv](https://discussions.unity.com/u/nickbarv)\
**Replies:** 0\
**Last updated:** [January 31, 2026, 5:40pm UTC](https://discussions.unity.com/t/how-to-use-splineanimate-on-a-specific-spline-in-a-spline-container/1706774 "2026-01-31T17:40:38Z")

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Hi, I’m using the Spline Animate component to make an object travel along a spline. I have a spline container containing many splines, and I’d like to control from code which of the splines in this container the Spline A…

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## [NativeSpline does not support custom allocators](https://discussions.unity.com/t/nativespline-does-not-support-custom-allocators/1704429)

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**Author:** [@rauiz](https://discussions.unity.com/u/rauiz)\
**Replies:** 0\
**Last updated:** [January 17, 2026, 1:10pm UTC](https://discussions.unity.com/t/nativespline-does-not-support-custom-allocators/1704429 "2026-01-17T13:10:10Z")

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The NativeSpline constructor creates its various NativeArray with the allocator argument. In all those places, you cannot pass in a custom allocator since they aren’t created with CollectionHelper.CreateNativeArray. It’…

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## [SplineExtrude component doesn't support custom shape definitions](https://discussions.unity.com/t/splineextrude-component-doesnt-support-custom-shape-definitions/1702909)

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**Author:** [@dinonc12](https://discussions.unity.com/u/dinonc12)\
**Replies:** 0\
**Last updated:** [January 7, 2026, 4:25am UTC](https://discussions.unity.com/t/splineextrude-component-doesnt-support-custom-shape-definitions/1702909 "2026-01-07T04:25:02Z")

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I’ve been using SplineExtrude for awhile and noticed it supports multiple shapes via the IExtrudeShape interface. However, the shape property is internal and doesn’t expose a way to set a custom implemented shape. Is the…

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## [Spline and Cinemachine memory leaks](https://discussions.unity.com/t/spline-and-cinemachine-memory-leaks/1700857)

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**Author:** [@TheNuggetXYZ](https://discussions.unity.com/u/TheNuggetXYZ)\
**Replies:** 9\
**Last updated:** [December 21, 2025, 4:15pm UTC](https://discussions.unity.com/t/spline-and-cinemachine-memory-leaks/1700857 "2025-12-21T16:15:18Z")

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So I made a Cinemachine spline dolly camera for a cutscene. I started getting memory leaks on entering play mode sometimes. How it looks: I enter play mode and there is like a 1 in 10 chance I’ll get this message: Foun…

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## [Using Spline Containers makes editing splines extremely difficult](https://discussions.unity.com/t/using-spline-containers-makes-editing-splines-extremely-difficult/1699461)

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**Author:** [@DungDajHjep](https://discussions.unity.com/u/DungDajHjep)\
**Replies:** 0\
**Last updated:** [December 10, 2025, 2:04pm UTC](https://discussions.unity.com/t/using-spline-containers-makes-editing-splines-extremely-difficult/1699461 "2025-12-10T14:04:23Z")

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Hello, I’m a new user who upgraded from Cinemachine 2.3 to 3.x. Previously, I created camera paths using the CameraPath component from v2.3 and found it extremely easy to use (similar to some Spline packages I bought on…

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## [Get selected knot in a spline](https://discussions.unity.com/t/get-selected-knot-in-a-spline/1698900)

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**Author:** [@yonatanab1](https://discussions.unity.com/u/yonatanab1)\
**Replies:** 1\
**Last updated:** [December 7, 2025, 6:35am UTC](https://discussions.unity.com/t/get-selected-knot-in-a-spline/1698900 "2025-12-07T06:35:00Z")

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how could I get the selected knot? (See image) My goal is to be able to move it to the sceneview’s camera’s position and rotation. public void MoveSelectedKnotToCamera() { var sceneView = SceneView.lastActi…

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## [Spline issue when creating race track](https://discussions.unity.com/t/spline-issue-when-creating-race-track/1696896)

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**Author:** [@colinmaxdeon](https://discussions.unity.com/u/colinmaxdeon)\
**Replies:** 0\
**Last updated:** [November 24, 2025, 2:07pm UTC](https://discussions.unity.com/t/spline-issue-when-creating-race-track/1696896 "2025-11-24T14:07:24Z")

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Okay so i made a simple race track using splines then by creating a road and using the spline extrude script. The issue I’m having is that the point where the loop closes so where the end and beginning meet (as in the…

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## [Changing spline's shape extrude type in code](https://discussions.unity.com/t/changing-splines-shape-extrude-type-in-code/1696099)

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**Author:** [@itayron10](https://discussions.unity.com/u/itayron10)\
**Replies:** 0\
**Last updated:** [November 19, 2025, 1:45pm UTC](https://discussions.unity.com/t/changing-splines-shape-extrude-type-in-code/1696099 "2025-11-19T13:45:48Z")

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I was wondering how to access the type of spline shape extrude through code in the Spline Extrude component that comes with the Unity Splines package. Didn’t find anything online… I need it for generating a spline in th…

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## [SplineUtility Problems (GetNearestPoint giving incorrect results)](https://discussions.unity.com/t/splineutility-problems-getnearestpoint-giving-incorrect-results/1581880)

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**Author:** [@ZAxisTechnology1](https://discussions.unity.com/u/ZAxisTechnology1)\
**Replies:** 1\
**Last updated:** [November 11, 2025, 9:57pm UTC](https://discussions.unity.com/t/splineutility-problems-getnearestpoint-giving-incorrect-results/1581880 "2025-11-11T21:57:05Z")

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Hey all, Im attempting to use Unity’s Spline package (v2.4.0) but when using the SplineUtility.GetNearestPoint function, its consistently returning incorrect results. I have a fairly simple spline with 4 knots, and are…

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## [Large amount of CPU usage ForceRebuildInspector Unity 6000.2.9f1 when spawning spline prefabs](https://discussions.unity.com/t/large-amount-of-cpu-usage-forcerebuildinspector-unity-6000-2-9f1-when-spawning-spline-prefabs/1691862)

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**Author:** [@BrianND](https://discussions.unity.com/u/BrianND)\
**Replies:** 0\
**Last updated:** [October 24, 2025, 3:18am UTC](https://discussions.unity.com/t/large-amount-of-cpu-usage-forcerebuildinspector-unity-6000-2-9f1-when-spawning-spline-prefabs/1691862 "2025-10-24T03:18:46Z")

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I was noticing that doing an undo in unity could take multiple seconds. I profiled the editor and I saw ForceRebuildInspector taking a large time. The items being instantiated are simple prefabs with a LOD component. Is…

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## [(SPLINES) How to add a knot between 2 knots](https://discussions.unity.com/t/splines-how-to-add-a-knot-between-2-knots/1690909)

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**Author:** [@joel64fernandes](https://discussions.unity.com/u/joel64fernandes)\
**Replies:** 0\
**Last updated:** [October 17, 2025, 8:37pm UTC](https://discussions.unity.com/t/splines-how-to-add-a-knot-between-2-knots/1690909 "2025-10-17T20:37:38Z")

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Hi im using the Unity Splines 2.8.2 I was not able to find out the shortcut to add a knot between 2 knots. I did go through the documentation but maybe i missed it. can anyone help if theres a shortcut to add a new kn…

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